Carving-machine



(No Model.)

' J. ,ROHLMANN GAMING MACHINE.

APatented 76 4 vSheets--Sheet 1.

(No Model.) 4 sheets-sheet 2.

J. ROHLMANN.

GAMING MACHINE. f

j) Patented Jan. lrQl.

No.l 444,306.

(No Model.)

I Y 4 Sheets-Sheei'. 3. J. ROHLMAN N CARVING MACHINE.

l Patented Jan.6,1891. jrggl' vn: News Parana oo., Fumo-mno., msumm'nu, mc.

(No Model.) 4 sheets-sheet 4, -J. ROHLMANN. CARVING MACHINE Patented Jan. 1891.

/N VEN 70H A TTOHNE Y S.

' UNITEDY STATES PATENT OFFICE..

JOSEPH ROHLMANN, OF sr. JOSEPH, MISSOURI.

CARVlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 444,306, dated January 6, 1.891.

Application iiledAugnst 26, 1889. Serial No. 322,001. (No model.)

To all whom t may/concern.-

Be it known that I, J OsEPH ROHLMANN, of St. Joseph, in the county of Buchanan and State of Missouri, have invented a new and Improved Carving-Machine, of which-the following is a full, clear, and exact description. The invention relates to wood-Working machinery; and its object is to provide a new and improved carving-machine which is simple and durable in construction, very effective iu operation, and adapted to carve simultaneously a number of blocks after one pattern.

The invention consists in certain parts and details and combinations of the same, as will be described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part oi' this speciiication, in which similar letters ofieference indicate corresponding parts in all the figures.

Figure lis a front view of the improvement, with parts in section. Fig. 2 is a sectional side elevation of the same on the line .fr x ot' Fig. 1. Fig. 3 is a plan view of the same. Fig. 4 is a sectional front view of part of the improvement on the line y y of Fig. 2. Fig. 5 is an enlarged front view of one of the cutters. Fig. 6 is a sectional side elevation of the same on the line .a .z of Figo. Fig.7is a sectional side elevation of the tool-chuck, and Fig. 8 is a plan view of the same.

The improved carving-machine is mounted On a suitably-constructed frame A, provided on each side with suitable bearings for guiding vertical screw-rods B, rigidly connected at their upper ends with the side rails C and C', respectively, on which are mounted to slide transversely the runners D', secured on the under side 01": the table D, adapted to support the pattern E and the blocks E' to be carved after the pattern E.

On each of the screw-rods B screws a nut B', formed on its outside like a sprocketwheel, over which passes an endless sprocketchain B2, also passing over a sprocket-wheel B2, secured on the vertical shaft B4, mounted to turn in suitable bearings on the 'main frame A. A hand-wheel B5 is fastened on the top of the said shaft B4, and serves to turn the latter, so as to turn the sprocket-wheel B3,

whereby the sprocket chain B2 is set in motion and turns simultaneously the several nuts B', in order to raise or lower the screwrods B, and consequently the side rails C C', supporting the table D.

Over the pat-tern F. is held a tracing-tool F, and on top of the several blocks E Operate the cutters G, held, with the tracing-tool F, on the frame H, which is counterbalanced and universally jointed, so as to give any desired motion to the tracing-tool and the several cutters. The tracing-tool F is fastened into a socket F' by means of a set-screw F2, and the said socket F' is provided with two bolts F2 and F4, extending horizontally and passing through beams H' and H2 of the frame H. The beams H and H2 extend longitudinally in front of the machine, are placed parallel with each other, and connected at their ends by rods H3 and H4, each provided with two bolts H5 and H6, passing into the beams H' and H2. These bolts H5 and HG are in the nature of horizontal pivots connecting beams H' and H2 to rods H3 Ht, so as to permit the beams to approach'each other like parallelmotioned bars, the pivotal connection ot' bolts H5 H6 to beams H' and H2 being substantially the same as the pivotal connections of bolts G10 to said beams, as shown in Figs. 5 and 6, more fully described hereinafter.

On the rods H2 and H4, between the beams H' and H2, are mounted to turn the sleeves I and I', each engaged by the pointed ends of set-screws J2, screwing in a ring J or J', respectively, each supported on the pointed ends of the set-screws K2, screwing in the forked ends of the brackets K and K', respectively. The pivots K2, which connect the rings to the brackets, form one axis of oscillation, andthe pivots J 2, which connect the rings to the sleeves .l l', form another axis of oscillation at right angles to Y2, which together constitute a universal joint. The pivots J2, acting in harmony with bolts H5 HG, permit the beams H' H2 to move like parallel bars, as indicated by the dotted ares of oscillation s s, Fig. l. The brackets K K are fulcrumed at their rear ends at K2 in the pulley-frame L, provided With suitable bearings, in which turns the shaft L', engaged at its ends by the setscrews N', held in the-lower end of a swing- IOO ing frame N, supported near its upper end on set-screws N2, screwing in the standards A, erected on the rear of the main f rame A. The upper ends of the standards A are connected with each other by a cross-frame A2.

ln the swinging frame N, in line with the set-screws N2, is held in suitable bearings a main dri ving-shaft O, provided with fast and loose pulleys O and O2, respectively, connected in the usual manner with machinery for imparting a driving motion to the carvingrnachine. On the shaft O is also secured a pulley O, over which passes a belt O", also passing over a pulley L2, secured on the shaft L of the pulley-frame L. lVhen the shaft O is rotated, the shaft L is set in motion bythe connection above described.

The front ends of the rearwardly-extcnding brackets K and K are supported on a bail P, extending upward and supported in its middle on a rod P', hung on a sleeve P2, held ad jnstably on the weighted lever P3, fulcrnnied on a shaft P4, mounted to turn in suitable bearings on an arm Q, pivoted at Q to a bracket Q'extcnding from the top of thc cutting-frame A2, previously mentioned. A weight P5 is held on the lever l3 and can be adjusted on the said lever to any` desired position by a set-screw or other means. The weight Plserves to counterbalanee the brackcts K K and the frame ll and its contents supported on the front ends of th-c said brackets.

The swinging frame N is provided on each side with upwardly-In'ojceting arms N, each supporting near its upper end a weight N1, which serves to move the frame N at all times back into a vertical position. It will be seen that the frame H, with the cutters G and the tracing-tool F, is free to swing forward and backward, turning on the set-screws K2. Said frame is also free to swing sidcwise, turning with its rods Hs and H4 in the sleeves I and I', respectively, supported by the set-screws J 2 from the rings J and J. The sidewise inotion of the frame ll is permitted by the brackets l( and K', as the latter have their vertical pivots at their rear ends in the frame L.

The frame H, when in a vertical position, can bemoved forward and backward without turning, as the frame N permits such movement, turning on the set-screws N. The frame' Il can also be raised and lowered by the frame L turning on the set-screws N in the swinging frame N. The weight P5 counterbalances the frame li. and its contents when raised or lowered to any position. The counterbalanciiig-lever P3 follows the movement of the frame Il and the brackets K K on account of being pivotcd on the shaft P, turning on the pivoted arm Q. Thus it will be seen that the tracing-tool F and the cutters G can be moved in any desired position. Each ot' the cutters Gis provided with a cutting-tool G', the shank of which tits into a split sleeve or chuck G2, passed inte a central aperture formed in the lower screw-threaded end Gil of the spindle G4, mounted to turn in the si'iindle-irame Gr", carrying a pulley G", over which passes a belt L4, also passing over a corresponding pulley L3, fastened on the shaft L of thc pulley-frame L.

On the threaded end G(3 ot' the spindle G* screws a nut G7, provided on its lower end with inclined flanges G8, adapted to press against a conical oiltset G, formed on the lower end of the split sleeve G2, so as to press said sleeve together at its lower end to fasten the tool t". (See Figs. G, 7, and S.) From the spindle-frame G5 extend horizontally the bolts G10, passing through the beams Il and H2 of the frame H in the same manner as the bolts F3 and F4 pass through the said beams, as before described in reference to the trac ing-tool.

The spinde-frame G5 is provided with the usual oil-cups R for oiling the spindle A handle G is held on the spindle-frame G", and serves for conveniently moving the latter whenever desired. On the lower end of the handle GrI1 is held a drip-cup G12 for gathering the drip-oil of the spindle G4 and to prevent the oil from passing onto the carved work.

The operation is as follows: NVhen the shaft O is rotated, the spindles G4 of the cutters G are turned, the tools G turning with the spindies. The operator takes hold of t-he frame H and manipulates the said frame, so that the tracing-tool F moves over the ornament already formed on the pattern E, pressing the frame H downward, so that the several tools G' cut with their cutting bot-tom edges into the wooden blocks E. The surplus material on the blocks E is removed by the tools G', and as the said tools operate in correspondence with the movement of the tracing-tool F the ornament finally appearing in the blocks E corresponds to the ornament on the pattern E. y

It will be seen that as the operator is enabled by the peculiar` construction of the machine to press the tracing-tool in any desired position, so that the cutting-tools assume a like position, all parts of the ornament can be readily traced and reproduced in the blocks E by the action ot' the cutting-tools G. It will further be seen that by the simple movement of the hand-wheel B"l the table D, carrying the pattern E and the blocks E', can be readily raised or lowered, according to thc thickness of the blocks to be operated on. It will further be seen that the table D can be easily moved forward and backward on the rails C and C', so as to bring the blocks directly under the tracing-tool F and the tools G. It will further be seen that the frame H,

carrying the tracing-tool and the cutters, can be very easily manipulated on account of being counterbalanced in any and every position by the weight I.

IIO

Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a carving-machine, the combination, with a frame carrying the cutters and tracingtool, of universal joints supporting the ends of the said frame, pivoted brackets supporting the said universal joints, and a counterbalanced lever connected with the free ends of the said brackets, substantially as shown and described.

2. In a carving-machine, the combination, with aframe carrying the cutters and tracingtool, of universal joints supporting the ends of the said frame, pivoted brackets supporting the said universal joints, a counterbalanced lever connected with the free ends ot the said brackets, and a pivoted arm carry'- ing a shaft on which the said lever is pivoted, substantially as shown and described.

3. In a carving-machine, the combination, with a main frame, of screw-rods guided in the said frame, side rails supported on the said screw-rods, a table held to slide horizontally on the said side rails, nuts screwing on the said screw-rods, and an endless chain passing over the said nuts and adapted to turn all the nuts simultaneously, substantially as shown and described.

4. In a carving-machine, the combination, with a main frame, of,k screw-rods guided in the said frame, side rails supported on the said screw-rods, a table held to slide horizontally on the said side rails, nuts screwing on the said screw-rods, an endless chain passing over the said nuts and adapted to turn all the nuts simultaneously, and means, substantially as described, for imparting a traveling niotion to the said chain to turn the said nuts, as setforth.

5. In a carving-machine, the combination, with a main frame, of screw-rods guided in the said frame, side rails supported on the said screw-rods, a table held to slide horizontally on the said side rails, nuts screwing on the said screw-rods, an endless chain passing over the said nuts and adapted to turn all the nuts simultaneously, a sprocket-Wheel mounted to turn in the said frame and over which passes the said chain, and means, substantially as described, for turning the said sprocket-wheel, substantially as shown and described.

J OSEPH ROHLMANN.

IVitnosses:

BERNARD Il. ROHLMANN, WILLIAM l?. SMITH. 

